Vehicle-wheel.



S. M. FRIEDMAN.

VBHIGLE WHEEL.

APPLICATION FILED MAY 12. 1909.

2 SHEBTS-SHBET 1.

Patented Sept; 20, 1910.

ATTORNEYS s-snnm 2.

Patented Sept.

SHEET nwnvron 6am uel Morris 17l'8d771an WITNESSES d By ATTORNEYS mentsin vehicle wheels, and more particw To all whom it may concern:

UNITED STATES PATENT OFFICE.

SAMUEL MORRIS FRIEDMAN, OF NEW YORK, N. Y.

'jVEHICLE-WHEEL.

' Specification Ilet ters Patent, Patented Sept, 20, 1910. Applicationfiled May 12, 1909. Serial No, 495,547. a

' ie it known that I, SAMUEL Moiuns FRIED- MAN, a citlzen. of the UnitedStates, and a otBrooklyn, in the county of Kings and State of New York,have invented a newand .Improved Vehicle-Wheel, of which th following isa full, clear, and exact description, v"

This invention relates to certain improvelarly,to resilient wheels inwhich the resiliency is gained by an annular air chamber "adjacent thehub of the wheel rather than by a peripheral pneumatic tire.

The main ob ect of my nvention is to so --construct this inner annularair chamber that the air may be retained therein under" pressure asefiiciently as it can be in an ordinar neumatic tire. To accom li h thisI y p s f spoke sect on 17 at-its outerend 1s connected provi eanannular air cushion or air bag 0 flexible material, forlnsta'nce,rubber, and

so disposed in relation to the spokes of the, wheel that all of said,spokesare held out-;

wardly by the pressure within the cushion or air bag. a

A further object of myinvention isto provide certain. improvements inthe structure of the rim and its connections, with the spokes; wherebythe separate sections of the rim may have relative movement.

Other objects and advantages of my improved construction will be -setforth herematter and/the scope 'of therinventiondefined in the claims. i

Reference is to be'had to the accompany-- 1ng iraw 1ngs, forming apartof this'speci ficat on, 1n which'similar charactersyof' referenceindicate corresponding parts in all thefigures, and in whichj Figure 1is a side view ofa vehicle wheel constructed in accordance with myinvention ,Fi 2 is a view of a portion of the rim scale, the spokesbeing shown 9 e se m SBCtIOII; 1g. 31s an ax al secton 1n the plane ofone of the spokes; Fig. e is a perspective view of the air cushion orair bag;

andFigs. 5 and 6 are transverse sections on the lines 5-5 and 66,respectively, of

Fig. 2. l

n the specific form illustrated in the accompanying drawings, I rovideiahub 10 ceive t e spindle havin a central passage t erethrou h to re- 1of the vehicle ax e. En-

circling the; hub roper is a chamberor compartment form'e by an end wall12 integral theret rough into whi enlar 4 closing 'materia with the hubro er, and a peri heral wall 13 supported y t e wall 12. T e opposite,

end of the'chamber is closed by an end wall 14, threaded on to the outerend of the hub and havin its periphery in engagement with the .e go ofthe peripheral wal1 13 and are threaded hollow spokeSGCtiOIlSlGafilextending radially outward in the same 'tions are rigidwit the hub, and each incloses a spoke election :17 lon 'tudinally movable'in respect thereto. T e inner ends of these spoke sections 17. areprovided with ed heads 18 which preferably have roun ed or curv outersurfaces and lit within countersunkua ertnres in the-innersurfaceof'thefperip eral wall 13. Each 20 the rim of the wheel, ashereinafter set ortH/"m Within the chamber formed by the ,hub proper,and the walls. 12, 13 and 14, I provide apneum'atic bag or cushionformed of an inner' rubberca sing 19 and an outer inasing 20, of leatheror other similar -'For inflating the cushion, I provide a conduit ortube .21-disposed within a groove in the outer surfaceof the hub properand connected-to the innerperipheral wall o f 'the bag 19. Theouter endof the tube terminatesadjacent the outer end of the hub and is providedwith a suitable valve for preventing the esc'ape of the compressed air.The inner end of the tube is bent outwardly radially and extends throughan.

aperture or slit in the inner peripheral wall 22 of the leather casingor covering of therubber bag. This inner peripheral wall or gene. Thesespoke .sec-

collar 22 may be made separate from the re- I mainder of the bag, so asto permit of its being slipped outwardly lon tu dinallypnd to permit thebag to be cofiiipsed andromoved from the leather 'casingd The hub issecuredto the spindle 11 in any suitable manner, as, for instance, by anut 23, and this nut, as well,as the outer end of the air tube 21 may beprotected by a cap 24, threaded on to the exterior of the hub." The rimis formed of a plurality of sections so connected together ast'o permitof certain relative movement of the sections.

W'ardly-extending sleeve or boss 26 rigidly Each alternate section 25iisprovided with an innates in circumferentially-extending lugs or flanges28, spaced apart and receiving a transverselyextending screw or bolt 29.

The intermediate rim sections 30 are unattached to the spokes but areprovided with QutWardly eXtending lugs 31 extending between the lugs 28of the rim sections 25,'and each having a slot therein to receive thecorresponding sc'rew or *bolt 29. The rim sections 30 not only connectthe rim sections 25 but also permit of a relative movement of the latterin'respect to each other,-.,duc to the slots in the lugs 31 Eachrimsection is preferably inclosed in a flexible casing or covering 32,which prevents the admission of dust, dirt or other pivotal connectionsbetween' the sections: These casings 32 are preferably, of thin leatheror similar material, and' each not only extends longitudinally of itscorre-- sponding section 80 to inclose and conceal the latter, butextends over a portion of the adjacent rim section 25. The ends ofthecasings are secured to the rim sections 25 by sheet metal collars orbands 33 secured to said rim sections in any suitable manner, for

as shown in Fig. 6.

instance, by screws 34;,

1s a solid tire 35 of Encircling the rim rubber, secured to each of therim sections.

Each rim section 25 may have outwardlyextending' peripheral. flanges 36,and the tire may have bolts with their heads embedded in the tire, andextending inward radially through the rim sections 25. At the inner endof each bolt, is' a suitablenut 38, which must be removed before thetire can be detached from the rim. These bolts also serve to prevent thetires from slipping. The rim sections 25 and their sections 17 ,p areapplication of a load sufficient to overcome the outward'pressure oftheair cushion. As. each rim section is balanced inwardly, the

air cushion will be distorted to partially collapse the same and furthercompress the air. The spoke sections have heads sufficiently foreignmatter to the 'tain of said rim sections.

corresponding spoke movable inwardly upon the" large, so that there ingthe air cushion, and the leather covering of the rubber bag prevents theedges of the head from cutting into the rubber. The rubber bag preventsthe escape of the air in a far'more efiicient manner than does thepacking around the spokesections were the cushion omitted and the aircompressed directly in the chamber. y

Having thus described my invention, 1 claim asnew and desire to secureby Letters Patent:

1. A'vehicle wheel havin spoke sections, a rim forme a plurality of of aplurality is no danger of'puneturof separate sections pivotallyconnected togather, certain of said sections being rigidly secured tosaid spoke sections, andtheremainder of,saidrim sections beingindependent of the spoke sections, and flexible casings inclosing saidlast-mentioned rim sections, and an annular tire rim and havingaplurality of bolts embedded 'therein and extending through cer- 2. Avehicle wheel having a mg a-bearlng sleeve and an annular chamber orcasing carried thereby, a plurality of the periphery spoke sectionssecured about of said chamber or casing, spoke sections telescopicallythe first-mentioned spoke sections and each having a head upon senting aconvex-surface withinsaid annular chamber, said heads beingnormally-couna plurality of its inner end and 1 precarried by said hub,vinc-ludmounted within I tersunk within the peripheral wall of thechamber, an annular pneumatic cushion or bag disposed within: saidchamber or casing and removable therefrom and having its outerperipheral wall polygonal in cross sec-- the'number of faces uponsaidperiphlq eral wall corresponding to the number of telescoping spokesections,'ea'ch face of saidwall being in engagement with the convexsurface of the corresponding spoke section.

In testimony whereof I have signedmy name to this specification in thepresence of two subscribing witnesses. I SAMUEL MORRIS, FRIEDMAN.Witnesses: I

NATHAN STEMPLE, M. F. MANSFIELD.

